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CSV National Environment Agency

Historical 24-hr PSI

Description

National Environment Agency historical CSV of Singapore’s regional 24-hour Pollutant Standards Index from April 2014 through May 2026. Columns cover North, South, East, West, and Central readings alongside the 24-hour PSI series. Environmental researchers and haze analysts reconstruct daily air-quality episodes across the island’s monitoring regions.

Official description

Historical regional 24-hr PSI

Download CSV View on data.gov.sg
Last updated
Coverage
2014-04-01 – 2026-07-31
Rows
106,656
Columns
6

Data

24hr Psi North South East West Central
1/4/2014 1:00 55 54 54 58 54
1/4/2014 2:00 55 54 54 59 54
1/4/2014 3:00 55 55 54 60 55
1/4/2014 4:00 56 55 55 62 55
1/4/2014 5:00 57 55 56 63 56
1/4/2014 6:00 58 56 56 64 56
1/4/2014 7:00 59 57 57 65 57
1/4/2014 8:00 60 57 58 66 58
1/4/2014 9:00 59 57 58 66 59
1/4/2014 10:00 60 58 58 67 59
1/4/2014 11:00 60 57 59 67 59
1/4/2014 12:00 60 57 58 67 59
1/4/2014 13:00 59 56 58 67 59
1/4/2014 14:00 59 56 58 67 59
1/4/2014 15:00 59 56 57 67 59
1/4/2014 16:00 58 55 57 66 59
1/4/2014 17:00 58 55 58 66 59
1/4/2014 18:00 57 55 57 66 59
1/4/2014 19:00 57 55 57 66 59
1/4/2014 20:00 58 56 57 66 59
1/4/2014 21:00 58 56 57 66 59
1/4/2014 22:00 58 56 57 65 58
1/4/2014 23:00 58 56 57 65 58
2/4/2014 0:00 58 55 57 64 58
2/4/2014 1:00 58 56 57 64 58

Columns

Column Type Categorical
24hr Psi Text No
North Text Yes
South Text Yes
East Text Yes
West Text Yes
Central Text Yes